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Add support for trait-based virtual methods on Nodes, and use it for before_remove_attr and after_set_attr.

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This commit is contained in:
Josh Matthews 2014-04-09 20:02:40 +02:00 • committed by Ms2ger
parent ea2560ef20
commit ca6cfb5bca
9 changed files with 173 additions and 65 deletions
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28
src/components/script/dom/htmlimageelement.rs
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@ -4,15 +4,16 @@
use dom::bindings::codegen::HTMLImageElementBinding;
use dom::bindings::codegen::InheritTypes::{NodeCast, HTMLImageElementDerived};
use dom::bindings::codegen::InheritTypes::{ElementCast};
use dom::bindings::codegen::InheritTypes::{ElementCast, HTMLElementCast};
use dom::bindings::js::JS;
use dom::bindings::error::ErrorResult;
use dom::document::Document;
use dom::element::{Element, HTMLImageElementTypeId};
use dom::element::{AttributeHandlers, AfterSetAttrListener, BeforeRemoveAttrListener};
use dom::element::AttributeHandlers;
use dom::eventtarget::{EventTarget, NodeTargetTypeId};
use dom::htmlelement::HTMLElement;
use dom::node::{Node, ElementNodeTypeId, NodeHelpers, window_from_node};
use dom::virtualmethods::VirtualMethods;
use servo_util::geometry::to_px;
use layout_interface::{ContentBoxQuery, ContentBoxResponse};
use servo_net::image_cache_task;
@ -226,18 +227,31 @@ impl HTMLImageElement {
}
}
impl AfterSetAttrListener for JS<HTMLImageElement> {
fn AfterSetAttr(&mut self, name: DOMString, value: DOMString) {
impl VirtualMethods for JS<HTMLImageElement> {
fn super_type(&self) -> Option<~VirtualMethods:> {
let htmlelement: JS<HTMLElement> = HTMLElementCast::from(self);
Some(~htmlelement as ~VirtualMethods:)
}
fn after_set_attr(&mut self, name: DOMString, value: DOMString) {
match self.super_type() {
Some(ref mut s) => s.after_set_attr(name.clone(), value.clone()),
_ => (),
}
if "src" == name {
let window = window_from_node(self);
let url = Some(window.get().get_url());
self.get_mut().update_image(Some(value), url);
}
}
}
impl BeforeRemoveAttrListener for JS<HTMLImageElement> {
fn BeforeRemoveAttr(&mut self, name: DOMString) {
fn before_remove_attr(&mut self, name: DOMString, value: DOMString) {
match self.super_type() {
Some(ref mut s) => s.before_remove_attr(name.clone(), value.clone()),
_ => (),
}
if "src" == name {
self.get_mut().update_image(None, None);
}